Fly exit



L. HICKEL LY EXIT flled June x Ew] Irwe Z mor En@ l g/ Attorney PatentedApr. 22, 1930 UNITED, STATES FRED L. HICKEL, OF RAY, NORTH DAKOTA FLYEXIT Application led .Tune 26,

This invention relates to an improved fly exit, in the form of anattachment for the screen wire of window screens, screen doors, andsimilar closures.

The invention has more particular reference to a structure which is anoriginal entity characterized by features forming a novel contributionto this art. It covers a practical device which can be easily attachedto the screen wire and which will function to provide a reliable anddependable exit for the flies.

The particular details and their relative arrangement and associationwill become more readily apparent from the following description anddrawings.

In the drawings: Figure 1 is an outside elevational view of an exitconstructed in accordance with this 2o invention, showing the sameatt-ached to the screen wire.

Figure 2. is an end view in vertical section, the section being takenapproximately upon the plane of the line 2-2 of Figure 1.

Figure 3 is a perspective view showing the entrance portion of the exit.

Figure 4 is a perspective view showing the discharge end thereof, thestructure being slightly modified here.

In the drawings, 5 designates the closure screen, which may be that of ascreen door, window screen or the like. y

In accordance with the present invention, an openingis cut in the screenand the trap is mounted so that it communicates with the opening, theexit being disposed on the exterior of the screen so that the fliescrawling up or down will find their way through the opening and outthrough the exit. The exit is generally desi nated by the numeral-6 andis in the form of a wire fabric box. It occupiesfan upwardly inclinedposition as shown in the drawings, but may be disposed downwardly, ifdesired. The entrance end thereof is provided withV a metal attachingframe 7 which is fastened by small bolts, screws or the like, 8, to asimilar frame'9, on the inside of the screen 5. These two frames aredisposed around the marginal edges of the openings. The flies incrawling either up or down on 1928. Serial No. 288,445.

the inside of the screen 5 will pass through the frames and into theexit 7 and will crawl upwardly in the exit where they are permitted toescape through the discharge openings 10. These discharge openings are Yformed in either one or two ways. As shown in Figure 3, for example, thestrands of wire 11 are brought together in series. For example, I takethree or four of the wire strands and bring the crown portions together,so that the strands assume a somewhat converging position. In so doing Iprovide a series of longitudinally spaced openings 10, through which theexit is made. This structure may be varied slightly as shown in F igureet, wherein instead of bringing the strands of wire together in thishunched relation, the strands are disposed so that certain of themindicated at 12, are unbroken and extend across the crown portion of thedischarge end of the exit, while others 13 are cut and left in asomewhat ragged state. This form is preferred, in that, although itallows the flies to escape freely, it tends to prevent the entrance ofother flies from the exterior of the door.

As is evident from the description and drawings, this box like exit issimply fastened to the screen and the flies enter through the entranceend, crawl upwardly and escape through the discharge opening 10, as isapparent.

It is thought that by considering the description and drawings, a clearunderstanding of the construction, operation, and advantages of theinvention will be had. y Therefore, a more lengthy description isregarded unnecessary.

Minor changes in the shape, size, and materials coming within the fieldof invention claimed may be resorted to, if desired.

I claim':

In a structure of the class described, a closure screen provided with anopening, an exit n in alignment with said opening, said exit being inthe form of an elongated substantially hollow box constructed of wiremesh material, said exit adapted to extend outwardly from saidclosure-screen and having one end completely opened to provide anentrance, an

attaching frame fastened to; said entrance, a complemental frame forcooperation with the first named frame, fastenngs for said frame and theopposite end of the exit being provided with a plurality of dischargeopenings, and said end being disposed in spaced relation With respect tosaid closure screen.

In testimony whereof I aiix my signature.

FRED L. HICKEL.

